293 lines
7.3 KiB
C
293 lines
7.3 KiB
C
/****************************************************************************
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* apps/graphics/pdcurses/pdc_deleteln.c
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* Public Domain Curses
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* RCSID("$Id: deleteln.c,v 1.35 2008/07/13 16:08:18 wmcbrine Exp $")
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*
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* Copyright (C) 2017 Gregory Nutt. All rights reserved.
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* Adapted by: Gregory Nutt <gnutt@nuttx.org>
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*
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* Adapted from the original public domain pdcurses by Gregory Nutt and
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* released as part of NuttX under the 3-clause BSD license:
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/* Name: deleteln
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*
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* Synopsis:
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* int deleteln(void);
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* int wdeleteln(WINDOW *win);
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* int insdelln(int n);
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* int winsdelln(WINDOW *win, int n);
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* int insertln(void);
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* int winsertln(WINDOW *win);
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*
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* int mvdeleteln(int y, int x);
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* int mvwdeleteln(WINDOW *win, int y, int x);
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* int mvinsertln(int y, int x);
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* int mvwinsertln(WINDOW *win, int y, int x);
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*
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* Description:
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* With the deleteln() and wdeleteln() functions, the line under
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* the cursor in the window is deleted. All lines below the
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* current line are moved up one line. The bottom line of the
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* window is cleared. The cursor position does not change.
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*
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* With the insertln() and winsertn() functions, a blank line is
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* inserted above the current line and the bottom line is lost.
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*
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* mvdeleteln(), mvwdeleteln(), mvinsertln() and mvwinsertln()
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* allow moving the cursor and inserting/deleting in one call.
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*
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* Return Value:
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* All functions return OK on success and ERR on error.
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*
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* Portability X/Open BSD SYS V
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* deleteln Y Y Y
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* wdeleteln Y Y Y
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* mvdeleteln - - -
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* mvwdeleteln - - -
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* insdelln Y - 4.0
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* winsdelln Y - 4.0
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* insertln Y Y Y
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* winsertln Y Y Y
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* mvinsertln - - -
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* mvwinsertln - - -
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*/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include "curspriv.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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int wdeleteln(WINDOW *win)
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{
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chtype blank;
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chtype *temp;
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chtype *ptr;
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int y;
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PDC_LOG(("wdeleteln() - called\n"));
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if (!win)
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{
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return ERR;
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}
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/* wrs (4/10/93) account for window background */
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blank = win->_bkgd;
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temp = win->_y[win->_cury];
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for (y = win->_cury; y < win->_bmarg; y++)
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{
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win->_y[y] = win->_y[y + 1];
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win->_firstch[y] = 0;
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win->_lastch[y] = win->_maxx - 1;
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}
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for (ptr = temp; (ptr - temp < win->_maxx); ptr++)
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{
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*ptr = blank; /* make a blank line */
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}
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if (win->_cury <= win->_bmarg)
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{
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win->_firstch[win->_bmarg] = 0;
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win->_lastch[win->_bmarg] = win->_maxx - 1;
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win->_y[win->_bmarg] = temp;
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}
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return OK;
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}
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int deleteln(void)
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{
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#ifdef CONFIG_PDCURSES_MULTITHREAD
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FAR struct pdc_context_s *ctx = PDC_ctx();
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#endif
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PDC_LOG(("deleteln() - called\n"));
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return wdeleteln(stdscr);
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}
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int mvdeleteln(int y, int x)
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{
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#ifdef CONFIG_PDCURSES_MULTITHREAD
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FAR struct pdc_context_s *ctx = PDC_ctx();
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#endif
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PDC_LOG(("mvdeleteln() - called\n"));
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if (move(y, x) == ERR)
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{
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return ERR;
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}
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return wdeleteln(stdscr);
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}
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int mvwdeleteln(WINDOW *win, int y, int x)
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{
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PDC_LOG(("mvwdeleteln() - called\n"));
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if (wmove(win, y, x) == ERR)
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{
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return ERR;
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}
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return wdeleteln(win);
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}
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int winsdelln(WINDOW *win, int n)
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{
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int i;
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PDC_LOG(("winsdelln() - called\n"));
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if (!win)
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{
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return ERR;
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}
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if (n > 0)
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{
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for (i = 0; i < n; i++)
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{
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if (winsertln(win) == ERR)
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{
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return ERR;
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}
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}
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}
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else if (n < 0)
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{
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n = -n;
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for (i = 0; i < n; i++)
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{
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if (wdeleteln(win) == ERR)
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{
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return ERR;
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}
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}
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}
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return OK;
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}
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int insdelln(int n)
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{
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#ifdef CONFIG_PDCURSES_MULTITHREAD
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FAR struct pdc_context_s *ctx = PDC_ctx();
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#endif
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PDC_LOG(("insdelln() - called\n"));
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return winsdelln(stdscr, n);
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}
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int winsertln(WINDOW *win)
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{
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chtype blank, *temp, *end;
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int y;
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PDC_LOG(("winsertln() - called\n"));
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if (!win)
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{
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return ERR;
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}
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/* wrs (4/10/93) account for window background */
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blank = win->_bkgd;
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temp = win->_y[win->_maxy - 1];
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for (y = win->_maxy - 1; y > win->_cury; y--)
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{
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win->_y[y] = win->_y[y - 1];
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win->_firstch[y] = 0;
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win->_lastch[y] = win->_maxx - 1;
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}
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win->_y[win->_cury] = temp;
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for (end = &temp[win->_maxx - 1]; temp <= end; temp++)
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{
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*temp = blank;
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}
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win->_firstch[win->_cury] = 0;
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win->_lastch[win->_cury] = win->_maxx - 1;
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return OK;
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}
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int insertln(void)
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{
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#ifdef CONFIG_PDCURSES_MULTITHREAD
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FAR struct pdc_context_s *ctx = PDC_ctx();
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#endif
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PDC_LOG(("insertln() - called\n"));
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return winsertln(stdscr);
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}
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int mvinsertln(int y, int x)
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{
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#ifdef CONFIG_PDCURSES_MULTITHREAD
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FAR struct pdc_context_s *ctx = PDC_ctx();
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#endif
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PDC_LOG(("mvinsertln() - called\n"));
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if (move(y, x) == ERR)
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{
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return ERR;
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}
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return winsertln(stdscr);
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}
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int mvwinsertln(WINDOW *win, int y, int x)
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{
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PDC_LOG(("mvwinsertln() - called\n"));
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if (wmove(win, y, x) == ERR)
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{
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return ERR;
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}
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return winsertln(win);
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}
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